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Power Management: ATI Catalyst vs. Open-Source ATI Driver

Posted on Saturday, March 07 2009 @ 04:18:45 CET by

Phoronix compared the power consumption of the official ATI Catalyst driver and the Open-Source ATI Driver in Linux. You can check it out over here. The site concludes the power management of the opensource driver needs improvement to put it on par with ATI's driver.
Yesterday we broke the news that AMD will stop supporting the R300-500 GPUs in the Catalyst driver. There have been well over one hundred posts in the Phoronix Forums from ATI customers upset with this decision, but fortunately, there is first-rate open-source support available. AMD continues to release documentation and code while the X.Org development community has been hard at work on the xf86-video-ati and xf86-video-radeonhd drivers along with Mesa and Gallium3D components. The main problem though is the open-source stack -- at this time -- providing poor gaming performance, but power management can also be a problem. In yesterday's article we provided some R500 comparative 2D and OpenGL benchmarks, but in this article are some power management results comparing the Catalyst 9.2 driver to the xf86-video-ati driver.



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